How can I be sure that Ubuntu is using my discreet GPU? Here are my lshw
results if you want to check out my specs. In short, I have a laptop with an Intel i5 processor, which of course has its own integrated graphics chip. Along with that, I have a 2GB AMD Radeon 7730M discreet GPU. Animations feels slow and sluggish on Ubuntu 13.04 compared to Windows 8 (which I have on another partition). Any help would be much appreciated.
Thanks!
lshw results (It was a bit too long to post as a code block here. )